Package: battery-stats Version: 0.5.1-1 Severity: normal On my system, the collector script fails as follows:
# battery-stats-collector cat: /sys/class/power_supply/BAT0/energy_now: No such file or directory [exit code 1] The details of the battery (when fully charged) are: # cat /sys/class/power_supply/BAT0/uevent POWER_SUPPLY_NAME=BAT0 POWER_SUPPLY_STATUS=Full POWER_SUPPLY_PRESENT=1 POWER_SUPPLY_TECHNOLOGY=Li-ion POWER_SUPPLY_CYCLE_COUNT=0 POWER_SUPPLY_VOLTAGE_MIN_DESIGN=7400000 POWER_SUPPLY_VOLTAGE_NOW=8544000 POWER_SUPPLY_CURRENT_NOW=1000 POWER_SUPPLY_CHARGE_FULL_DESIGN=6440000 POWER_SUPPLY_CHARGE_FULL=5565000 POWER_SUPPLY_CHARGE_NOW=6440000 POWER_SUPPLY_CAPACITY=115 POWER_SUPPLY_CAPACITY_LEVEL=Full POWER_SUPPLY_MODEL_NAME=DELL 909H538 POWER_SUPPLY_MANUFACTURER=SMP POWER_SUPPLY_SERIAL_NUMBER=608 A few seconds after disconnecting, this becomes: # cat /sys/class/power_supply/BAT0/uevent POWER_SUPPLY_NAME=BAT0 POWER_SUPPLY_STATUS=Discharging POWER_SUPPLY_PRESENT=1 POWER_SUPPLY_TECHNOLOGY=Li-ion POWER_SUPPLY_CYCLE_COUNT=0 POWER_SUPPLY_VOLTAGE_MIN_DESIGN=7400000 POWER_SUPPLY_VOLTAGE_NOW=8438000 POWER_SUPPLY_CURRENT_NOW=966000 POWER_SUPPLY_CHARGE_FULL_DESIGN=6440000 POWER_SUPPLY_CHARGE_FULL=5565000 POWER_SUPPLY_CHARGE_NOW=5465000 POWER_SUPPLY_CAPACITY=98 POWER_SUPPLY_CAPACITY_LEVEL=Normal POWER_SUPPLY_MODEL_NAME=DELL 909H538 POWER_SUPPLY_MANUFACTURER=SMP POWER_SUPPLY_SERIAL_NUMBER=608 So it looks like taking min(100 * charge_now / charge_full, 100) should give a percentage indicating how fully the battery is charged. Can you use this as a fallback if energy_now / energy_full are not available for a battery? Best regards, Sebastian Kuhnert --- System information. --- Architecture: amd64 Kernel: Linux 4.4.0-1-amd64
